In looking over the deck lists, one of the decks in particular jumped out at me as being particularly synergistic and primed for easy upgrades
You'll want a deck and a commander that can put counters to good use (luckily, Tidus, Yuna's Guardian brings a whole Commander precon with exactly that theme!), and a board ready to roll with the dice
The trouble is that there just arent enough moms in Magic yet, and none of these cards really connect together
Dimir Charm has been impressive thus far in cube, it has found itself in more different decks and seen more play than any of the other new charms even if it has not been quite so blow out powerful as Selesnya, Rakdos or Boros Charms
Arcane Denial is card disadvantage down the line, but you can counter any threat now, and the mana cost is a bit easier than Counterspell
Blade of Selves (62k) has a FEA from CLB, Flail (32k) has an etched foil thats over $20, Deathrender (6k) is worth a couple bucks, Darksteel Plate (72k) also has a $20+ etched version, and Whispersilk Cloak (168k) has the special LCI printing pushing $10